CN109307582A - A kind of the wind field detection device and detection method of increasing material manufacturing equipment - Google Patents

A kind of the wind field detection device and detection method of increasing material manufacturing equipment Download PDF

Info

Publication number
CN109307582A
CN109307582A CN201811449376.5A CN201811449376A CN109307582A CN 109307582 A CN109307582 A CN 109307582A CN 201811449376 A CN201811449376 A CN 201811449376A CN 109307582 A CN109307582 A CN 109307582A
Authority
CN
China
Prior art keywords
simulation
manufacturing equipment
material manufacturing
increasing material
air inlet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201811449376.5A
Other languages
Chinese (zh)
Other versions
CN109307582B (en
Inventor
唐倩
刘威
刘宗敏
宋军
梁平华
范小杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing University
Original Assignee
Chongqing University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chongqing University filed Critical Chongqing University
Priority to CN201811449376.5A priority Critical patent/CN109307582B/en
Publication of CN109307582A publication Critical patent/CN109307582A/en
Application granted granted Critical
Publication of CN109307582B publication Critical patent/CN109307582B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M9/00Aerodynamic testing; Arrangements in or on wind tunnels
    • G01M9/06Measuring arrangements specially adapted for aerodynamic testing
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01PMEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P5/00Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Measuring Volume Flow (AREA)

Abstract

The invention discloses a kind of wind field test device of increasing material manufacturing equipment and test methods, including simulation box, it is identical as tested increasing material manufacturing equipment box structure to simulate box shape, simulation air inlet is offered on simulation box side, simulation air outlet corresponding with simulation air inlet is offered on opposite, and measurement component is equipped at the top of simulation box;Test method is exactly traverse measurement component, the process that the data and correlation data for recording wind speed detector are drawn a conclusion;The present invention can simulate increasing material manufacturing equipment, and detect the stability of the wind field formed between air outlet and air inlet inside increasing material manufacturing equipment, it can detect and find early and is whether problematic between the air inlet and air outlet of increasing material manufacturing equipment, it produces in batches or builds in the case where preventing air inlet and air outlet from having exception, and then the low-quality problem of increasing material manufacturing equipment partial printing is effectively prevented, improve the print quality of increasing material manufacturing equipment.

Description

A kind of the wind field detection device and detection method of increasing material manufacturing equipment
Technical field
The present invention relates to material increasing fields, more particularly to the wind field detection device and detection of a kind of increasing material manufacturing equipment Method.
Background technique
Increasing material manufacturing is commonly called as 3D printing, CAD, material processing and forming technique has been merged, with digital mould Based on type file, by software and digital control system by dedicated metal material, nonmetallic materials and biomaterial for medical purpose, press It is successively accumulated according to modes such as extruding, sintering, melting, photocuring, injections, produces the manufacturing technology of physical item.Increasing material manufacturing Metal powder layer is first layered on workbench by powdering vehicle by equipment in print procedure, then controls laser in workbench Mobile, sintering, laser sintering powder process can generate black smoke and splash winged powder particle, can reduce print quality, enter the wind at this time Mouthful and air outlet open, form one layer of wind domain above workbench, black smoke and flying dust particle be discharged, but existing increasing material manufacturing Often there is the non-uniform situation of air inlet air inlet and the outlet mouth outlet air in equipment, cause the air quantity in wind domain above workbench uneven It is even, cause the black smoke of partial region that can not be discharged, so that the portion of part print quality is off quality.Therefore, if Increasing material manufacturing equipment batch just finds that this problem will cause immeasurable loss to manufacturer after being made.
Therefore those skilled in the art are dedicated to developing one kind to be able to detect air inlet air inlet and the outlet mouth outlet air uneven Increasing material manufacturing equipment wind field detection device and detection method.
Summary of the invention
In view of the above drawbacks of the prior art, technical problem to be solved by the invention is to provide a kind of increasing material manufacturings to set Standby wind field detection device and detection method are able to detect between the air inlet and air outlet for having increasing material manufacturing equipment Whether wind field is stable.
To achieve the above object, the present invention provides a kind of wind field detection device of increasing material manufacturing equipment, including simulation box, Simulation air inlet is offered on simulation box side, and simulation air outlet corresponding with simulation air inlet, simulation box are offered on opposite Top is equipped with measurement component;
Measuring component includes the first magnet and the second magnet, and the first magnet and the interaction of the second magnet are adsorbed on simulation box Upper cover, the first magnet is located at the inner surface of upper cover, and the second magnet is located at the outer surface of upper cover, the first magnet by connecting line with Wind speed detector connection.
Preferably, simulation air outlet and the simulation adjustable section of air inlet.
Preferably, being additionally provided with adjustable plate on the side of simulation box, adjustable plate is located at the simulation air inlet and simulation outlet air Mouth periphery.
Preferably, adjustable plate is bolted on the side of simulation box;Strip groove is offered on adjustable plate, bolt is worn Cross strip groove.
Preferably, the side of simulation box is equipped with parcel shelf, parcel shelf is bolted on simulation box.
Preferably, the lid of simulation box is equipped with rectangular displacement lattice.
Preferably, the distance in wind speed detector range simulation bottom portion and simulation air inlet and simulation air outlet center away from It is identical with a distance from simulation box bottom.
Preferably, connecting line is thin wire.
A kind of wind field detection method of increasing material manufacturing equipment, using above-mentioned increasing material manufacturing equipment wind field detection device into The method of row detection, specifically comprises the following steps:
1) position for adjusting adjustable plate and connecting line is located at wind speed detector between simulation air inlet and simulation air outlet In the wind field region of formation;
2) mobile second magnet, makes it that the first magnet and wind speed detector be driven to be moved, and records the seat on lid The data v of cursor position and wind speed detectorn
3) the corresponding wind speed size of list records coordinate position and the position, correlation data, if the wind speed of all coordinates is big Small difference is within the scope of 0m/s-0.2m/s, then the wind field between the air inlet and air outlet of increasing material manufacturing equipment is stablized, conversely, Then wind field is unstable.
Preferably, step 1) specifically comprises the following steps:
A) adjust adjustable plate, make to simulate air inlet and air port size and the practical increasing material manufacturing equipment of simulating air outlet into Air port is identical with air outlet size;
B) length for adjusting connecting line makes the distance in the range simulation bottom portion of wind speed detector and simulates air inlet and mould Draw up being equidistant for air port range simulation bottom portion.
The present invention can simulate increasing material manufacturing equipment, and detect inside increasing material manufacturing equipment between air outlet and air inlet The stability of the wind field of formation can detect and find early whether ask between the air inlet and air outlet of increasing material manufacturing equipment Topic, produces in batches or builds in the case where preventing air inlet and air outlet from having exception, and then effectively prevent increasing material manufacturing and set The standby low-quality problem of partial printing, improves the print quality of increasing material manufacturing equipment.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention one;
Fig. 2 is the backsight structural representation of Fig. 1;
Fig. 3 is the overlooking structure diagram of Fig. 1;
Fig. 4 is the structural schematic diagram of the measurement component of the embodiment of the present invention one;
Fig. 5 is the structural schematic diagram of the embodiment of the present invention two;
Fig. 6 is the backsight structural representation of Fig. 5;
Fig. 7 is the structural schematic diagram of the measurement component of the embodiment of the present invention two;
1- simulation box;11- upper cover;2- simulates air inlet;3- simulates air outlet;
4- measures component;The first magnet of 41-;411- winding slot;412- cable clamping interface;The second magnet of 42-;43- connecting line; 44- wind speed detector;
5- adjustable plate;51- strip groove;
7- parcel shelf.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples, it should be noted that, in the description of the present invention, The orientation or positional relationship of the instructions such as term " on ", "lower", "left", "right", "inner", "outside" be orientation based on the figure or Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must There must be specific orientation, construct and operate in a particular manner, therefore be not considered as limiting the invention.Term " the One ", " second ", " third " etc. are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
Embodiment one
As shown in Figures 1 to 4, a kind of wind field detection device of increasing material manufacturing equipment, including simulation box 1,1 shape of simulation box It is identical as detected increasing material manufacturing equipment box structure, simulation air inlet 2 is offered on 1 side of simulation box, is offered on opposite With the corresponding simulation air outlet 3 of simulation air inlet 2, it is equipped at the top of simulation box 1 and measures component 4;Measurement component can measure simulation Wind field stability between air inlet and simulation air outlet;Measuring component 4 includes the first magnet 41 and the second magnet 42, the first magnetic Iron 41 and the second magnet 42, which interact, is adsorbed on the upper cover 11 of simulation box 1, and the first magnet 41 is located at the inner surface of upper cover 11, the Two magnet 42 are located at the outer surface of upper cover 11, and the first magnet 41 is connect by connecting line 43 with wind speed detector 44;Pass through shifting Dynamic second magnet 42, due to magnetic force, the first magnet 41 can also move therewith, while the first magnet 41 passes through connecting line 43 The corresponding position of 44 movement of wind speed detector can be subjected to wind field detection, realize the complete detection to wind field region, the present invention The mobile power of wind speed detector is transmitted by magnet, therefore the stability in modeling wind field will not be impacted, therefore it is examined Measured data is reliable.
Simulate air outlet 3 and the simulation adjustable section of air inlet 2;It simulates and is respectively equipped on the adjacent two sides of air outlet 3 Adjustable plate 5 is respectively equipped on the adjacent both sides of adjustable plate 5, simulation air inlet 2 and simulation air outlet 3;Therefore, adjusting can be passed through Adjustable plate 5, and then change air port size, so that this detection device is can adapt to different size of air port, is suitable for different increasing materials Manufacturing equipment improves the versatility of this detection device;Strip groove 51 is offered on adjustable plate 5, adjustable plate 5 passes through bolt and item Shape slot 51 is cooperatively connected in the side of simulation box 1;Position by mobile adjustable plate 5 relative to bolt, it is big to can be realized air port Small adjusting.
The side of simulation box 1 is equipped with parcel shelf 7, and parcel shelf 7 is bolted on simulation box 1, and parcel shelf 7 can be used In placing or install different articles, such as the objects such as exhaust fan can be placed.
Simulation box 1 covers 11 equipped with rectangular displacement lattice, convenient for positioning in measurement process to wind field position, improves wind speed inspection The accuracy of survey.
The distance and simulation air inlet 2 of 44 range simulation case of wind speed detector, 1 bottom and the centre distance for simulating air outlet 3 The distance of 1 bottom of simulation box is identical, it is ensured that wind speed detector 44 is located between simulation air inlet and simulation air outlet, that is, ensures Wind speed detector is located in wind field detection zone, further increases the accuracy of measurement.
Connecting line 43 is on the one hand thin wire can play fixed wind speed detector, keep away because the hardness of thin wire is higher Exempt from wind speed detector to shake in moving process, and then influence wind speed detector detection data accuracy, on the other hand due to thin Iron wire is very thin, therefore will not impact to wind field in its moving process, further improves the accuracy of detection data.
Embodiment two
As shown in Figures 5 to 7, the technical solution of embodiment 2 is other than comprising the technical solution in embodiment 1, embodiment 2 In simulation air inlet after simulate and be provided with four pieces of adjustment blocks around air port, improve the flexibility of adjustment, further promoted The applicability of this detection device.In addition, being additionally provided with a circle coiling on the first magnet 41 for the ease of adjusting the length of connecting line Extra wire length can be wound in winding slot 411 by slot 411, in addition, uniformly offering card line on 411 lower section of winding slot, one circle Slot 412, therefore connecting line can be fastened in closest cable clamping interface after coiling, then be connect again with wind speed detector.
Embodiment three
Embodiment 3 is to be examined using the wind field detection device of the above embodiments 1 and the increasing material manufacturing equipment of embodiment 2 The method of survey, specifically comprises the following steps:
1) adjustable plate 5 is adjusted, sets the air port size for simulating air inlet 2 and simulation air outlet 3 with actual increasing material manufacturing Standby air inlet is identical with air outlet size, it is ensured that the present apparatus is identical as the structure of increasing material manufacturing equipment to be measured.
2) length for adjusting connecting line 43 enters the wind the distance of 1 bottom of range simulation case of wind speed detector 44 and simulation Mouth 2 is equidistant with simulation 3 range simulation case of air outlet, 1 bottom, and wind speed detector 44 is made to be located at simulation air inlet 2 and simulate In the wind field region formed between air outlet 3.
3) the second magnet is affixed on upper lid surface, while adsorbs the second magnet with the first magnet, be close to the second magnet In upper interior surface, then upper cover is closed on simulation box 1;Complete detection preparation.
4) mobile second magnet 42, makes it that the first magnet 41 and wind speed detector 44 be driven to be moved, and record upper cover Coordinate position (x on 11n, yn) and wind speed detector 44 data vn
3) the corresponding wind speed size of list records coordinate position and the position, correlation data, if the wind speed of all coordinates is big Small difference is within the scope of 0m/s-0.2m/s, then the wind field between the air inlet and air outlet of increasing material manufacturing equipment is stablized, conversely, Then wind field is unstable.
The configuration of the present invention is simple, it is easy to operate, can accurate detection go out the stability of wind field in increasing material manufacturing equipment, have Effect avoid because inlet and outlet is unqualified and caused by the underproof question-and-answer problem of print quality.
The preferred embodiment of the present invention has been described in detail above.It should be appreciated that those skilled in the art without It needs creative work according to the present invention can conceive and makes many modifications and variations.Therefore, all technologies in the art Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea Technical solution, all should be within the scope of protection determined by the claims.

Claims (10)

1. a kind of wind field detection device of increasing material manufacturing equipment, it is characterized in that: including simulation box (1);Simulation box (1) side On offer simulation air inlet (2), offer simulation air outlet (3) corresponding with simulation air inlet (2) on opposite;It is described Measurement component (4) is equipped at the top of simulation box (1);
The measurement component (4) includes the first magnet (41) and the second magnet (42), first magnet (41) and the second magnet (42) it interacts and is adsorbed on the upper cover (11) of the simulation box (1), first magnet (41) is located at the upper cover (11) Inner surface, second magnet (42) are located at the outer surface of the upper cover (11);First magnet (41) passes through connecting line (43) it is connect with wind speed detector (44).
2. the wind field detection device of increasing material manufacturing equipment as described in claim 1, it is characterized in that: the simulation air outlet (3) With simulation air inlet (2) adjustable section.
3. the wind field detection device of increasing material manufacturing equipment as claimed in claim 2, it is characterized in that: the side of the simulation box (1) It is additionally provided on face adjustable plate (5), the adjustable plate (5) is located at the simulation air inlet (2) and simulation air outlet (3) periphery.
4. the wind field detection device of increasing material manufacturing equipment as claimed in claim 3, it is characterized in that: the adjustable plate (5) passes through Bolt is fixed on the side of the simulation box (1);Strip groove (51) are offered on the adjustable plate (5), the bolt passes through Strip groove (51).
5. the wind field detection device of the increasing material manufacturing equipment as described in Claims 1-4 is any, it is characterized in that: the simulation box (1) side is equipped with parcel shelf (7), and the parcel shelf (7) is bolted on the simulation box (1).
6. the wind field detection device of the increasing material manufacturing equipment as described in Claims 1-4 is any, it is characterized in that: the simulation box (1) upper cover (11) is equipped with displacement lattice.
7. the wind field detection device of the increasing material manufacturing equipment as described in Claims 1-4 is any, it is characterized in that: the wind speed is examined Survey the center of instrument (44) distance apart from the simulation box (1) bottom and simulation air inlet (2) and simulation air outlet (3) away from It is identical with a distance from the simulation box (1) bottom.
8. the wind field detection device of the increasing material manufacturing equipment as described in Claims 1-4 is any, it is characterized in that: the connecting line It (43) is iron wire.
9. a kind of wind field detection method of increasing material manufacturing equipment, it is characterized in that: any described using the claims 1 to 8 The method that the wind field detection device of increasing material manufacturing equipment is detected, specifically comprises the following steps:
1) so that wind speed detector (44) is located at simulation air inlet (2) and simulate the wind field region formed between air outlet (3) It is interior;
2) mobile second magnet (42), makes it that first magnet (41) and wind speed detector (44) be driven to be moved, And record the data vn of the coordinate position (xn, yn) on the upper cover (11) and wind speed detector (44);
3) data recorded in list comparison step 2), if the wind speed size of all coordinates differs within the scope of 0m/s-0.2m/s, Then the wind field between the air inlet and air outlet of increasing material manufacturing equipment is stablized;Conversely, then wind field is unstable.
10. the wind field detection method of increasing material manufacturing equipment as claimed in claim 9, it is characterized in that: the step 1) is specifically wrapped Include following steps:
A) adjustable plate (5) are adjusted, the air port size of simulation air inlet (2) and simulation air outlet (3) and reality is made to increase material system The air inlet of manufacturing apparatus is identical with air outlet size;
B) length for adjusting the connecting line (43), makes simulation box described in the distance of the wind speed detector (44) (1) bottom Distance and the simulation air inlet (2) and simulation air outlet (3) being equidistant apart from the simulation box (1) bottom.
CN201811449376.5A 2018-11-30 2018-11-30 Wind field detection device and detection method of additive manufacturing equipment Expired - Fee Related CN109307582B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811449376.5A CN109307582B (en) 2018-11-30 2018-11-30 Wind field detection device and detection method of additive manufacturing equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811449376.5A CN109307582B (en) 2018-11-30 2018-11-30 Wind field detection device and detection method of additive manufacturing equipment

Publications (2)

Publication Number Publication Date
CN109307582A true CN109307582A (en) 2019-02-05
CN109307582B CN109307582B (en) 2020-11-10

Family

ID=65223483

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811449376.5A Expired - Fee Related CN109307582B (en) 2018-11-30 2018-11-30 Wind field detection device and detection method of additive manufacturing equipment

Country Status (1)

Country Link
CN (1) CN109307582B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110000378A (en) * 2019-04-02 2019-07-12 重庆大学 The wind field detection device and increasing material manufacturing equipment of increasing material manufacturing equipment
CN110887596A (en) * 2019-12-10 2020-03-17 白音洁 Instantaneous internal pressure measuring device for building structure
CN114295643A (en) * 2021-12-31 2022-04-08 中国建筑材料科学研究总院有限公司 Sample test box capable of simulating dispersion state of interference material, and system and method for testing dynamic wave absorbing performance of interference material
CN115138876A (en) * 2021-03-30 2022-10-04 广东汉邦激光科技有限公司 Purified wind field generating device and additive manufacturing equipment
CN117884655A (en) * 2024-03-14 2024-04-16 中国海洋大学 3D printer and control method thereof

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4770031A (en) * 1986-10-17 1988-09-13 Vanderbilt University Accelerated test chamber
CN2047373U (en) * 1988-10-12 1989-11-08 南京长江教科文开发公司 Experimental device for ventilation
JP3865472B2 (en) * 1997-07-24 2007-01-10 石川島播磨重工業株式会社 Vertical wind tunnel for free descent training
CN101614783A (en) * 2009-07-31 2009-12-30 西安交通大学 The bubble-discharge test unit and the test method of manual simulation's high wind and sandstorm
CN101776530A (en) * 2009-12-23 2010-07-14 广东省建筑科学研究院 System and method for testing indoor natural ventilating model of building
CN102023081A (en) * 2010-10-13 2011-04-20 北京化工大学 Minitype visual wind power and water power test bed
CN102183056A (en) * 2011-05-24 2011-09-14 西安建筑科技大学 Air flow full-seal-type smoke exhaust hood
CN102706532A (en) * 2012-06-01 2012-10-03 华南理工大学 Method for measuring uniformity of wind field in wind tunnel
CN202869772U (en) * 2012-10-30 2013-04-10 京东方科技集团股份有限公司 Airflow simulation experiment apparatus
CN103411749A (en) * 2013-08-21 2013-11-27 中国科学技术大学 Experimental device and experimental method used for studying smoke discharge induction system
CN205158755U (en) * 2015-11-12 2016-04-13 浙江瑞亚能源科技有限公司 Simulation wind power generation's wind field device
CN105868434A (en) * 2015-07-30 2016-08-17 南京航空航天大学 Method for simulating heat and mass transfer of reinforcement phase and melt interface in laser 3D printing composite material molten pool
CN106441783A (en) * 2016-11-25 2017-02-22 中国石油天然气集团公司 Testing device for detecting pneumatic correlation of pipeline suspension bridge in turbulent wind field
CN106694882A (en) * 2017-01-24 2017-05-24 厦门理工学院 Airflow-smooth air inlet/outlet structure for metal 3D printer
CN206656846U (en) * 2017-05-08 2017-11-21 仲恺农业工程学院 A kind of small agricultural single flow low-speed wind tunnel

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4770031A (en) * 1986-10-17 1988-09-13 Vanderbilt University Accelerated test chamber
CN2047373U (en) * 1988-10-12 1989-11-08 南京长江教科文开发公司 Experimental device for ventilation
JP3865472B2 (en) * 1997-07-24 2007-01-10 石川島播磨重工業株式会社 Vertical wind tunnel for free descent training
CN101614783A (en) * 2009-07-31 2009-12-30 西安交通大学 The bubble-discharge test unit and the test method of manual simulation's high wind and sandstorm
CN101776530A (en) * 2009-12-23 2010-07-14 广东省建筑科学研究院 System and method for testing indoor natural ventilating model of building
CN102023081A (en) * 2010-10-13 2011-04-20 北京化工大学 Minitype visual wind power and water power test bed
CN102183056A (en) * 2011-05-24 2011-09-14 西安建筑科技大学 Air flow full-seal-type smoke exhaust hood
CN102706532A (en) * 2012-06-01 2012-10-03 华南理工大学 Method for measuring uniformity of wind field in wind tunnel
CN202869772U (en) * 2012-10-30 2013-04-10 京东方科技集团股份有限公司 Airflow simulation experiment apparatus
CN103411749A (en) * 2013-08-21 2013-11-27 中国科学技术大学 Experimental device and experimental method used for studying smoke discharge induction system
CN105868434A (en) * 2015-07-30 2016-08-17 南京航空航天大学 Method for simulating heat and mass transfer of reinforcement phase and melt interface in laser 3D printing composite material molten pool
CN205158755U (en) * 2015-11-12 2016-04-13 浙江瑞亚能源科技有限公司 Simulation wind power generation's wind field device
CN106441783A (en) * 2016-11-25 2017-02-22 中国石油天然气集团公司 Testing device for detecting pneumatic correlation of pipeline suspension bridge in turbulent wind field
CN106694882A (en) * 2017-01-24 2017-05-24 厦门理工学院 Airflow-smooth air inlet/outlet structure for metal 3D printer
CN206656846U (en) * 2017-05-08 2017-11-21 仲恺农业工程学院 A kind of small agricultural single flow low-speed wind tunnel

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110000378A (en) * 2019-04-02 2019-07-12 重庆大学 The wind field detection device and increasing material manufacturing equipment of increasing material manufacturing equipment
CN110000378B (en) * 2019-04-02 2020-05-22 重庆大学 Air field detection device for additive manufacturing equipment and additive manufacturing equipment
CN110887596A (en) * 2019-12-10 2020-03-17 白音洁 Instantaneous internal pressure measuring device for building structure
CN110887596B (en) * 2019-12-10 2021-09-24 临沂天方建设研究试验有限公司 Instantaneous internal pressure measuring device for building structure
CN115138876A (en) * 2021-03-30 2022-10-04 广东汉邦激光科技有限公司 Purified wind field generating device and additive manufacturing equipment
CN115138876B (en) * 2021-03-30 2024-03-19 广东汉邦激光科技有限公司 Purifying wind field generating device and additive manufacturing equipment
CN114295643A (en) * 2021-12-31 2022-04-08 中国建筑材料科学研究总院有限公司 Sample test box capable of simulating dispersion state of interference material, and system and method for testing dynamic wave absorbing performance of interference material
CN117884655A (en) * 2024-03-14 2024-04-16 中国海洋大学 3D printer and control method thereof

Also Published As

Publication number Publication date
CN109307582B (en) 2020-11-10

Similar Documents

Publication Publication Date Title
CN109307582A (en) A kind of the wind field detection device and detection method of increasing material manufacturing equipment
CN103760079A (en) dust tester calibration method and system
CN102944507B (en) A kind of measurement mechanism of lightweight abnormity particle drag coefficient and measuring method
US8270668B2 (en) Method and apparatus for analyzing objects contained in a flow or product sample where both individual and common data for the objects are calculated and monitored
CN109716168B (en) Method for estimating the angular deviation between a reference axis and a magnetic axis of a magnetic object
US10241159B2 (en) Devices and methods for determining a magnetic field
Machida et al. Process tomography system by electrostatic charge carried by particles
CN105675115A (en) Laser Doppler online vibration testing system and method
CN110487393A (en) The unstable state free field restoring method measured using single side acoustic pressure and particle velocity
CN110076093A (en) A kind of VCM motor full-automatic detector
CN111504446A (en) Test system for surface sound intensity distribution on automatic scanning equipment
CN112964212B (en) Method for checking coating thickness by using coating thickness detector
CN214276810U (en) Powder converging point parameter measuring device of additive manufacturing powder feeding nozzle
CN109443268A (en) The bounce of inside spin raceway and timing measuring device
CN206177751U (en) Bean curd quality detecting device
CN108802644A (en) The method for shimming and device of gradient coil
CN104050503B (en) Grain counting sensor based on collision sound recognition
CN205581282U (en) Automatic detection apparatus for permanent magnet work piece
CN204556438U (en) A kind of closed apparent density of powder detector
CN103499272A (en) Wide-range magnetic thickness measuring device for non-magnetic coating of ferromagnetic component and detection method of wide-range magnetic thickness measuring device
CN109991437A (en) A kind of speed measuring device
CN211697392U (en) Measuring device for scattered aerosol of radioactive powder
CN102506891B (en) Mileage detection method for magnetic-navigation wheeled autonomous mobile robot
US3504552A (en) Particle contact counter and method
CN219151870U (en) Rotary marking device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20201110

Termination date: 20211130

CF01 Termination of patent right due to non-payment of annual fee